Efficient Sonogashira and Suzuki-Miyaura coupling reaction catalyzed by Pd-Nanoparticles

Abstract

The Pd nano particles were electrochemically deposited on nafion-graphene. They showed excellent catalytic activity towards Sonogashira and Suzuki-Miyaura cross-coupling reaction. Benzenediazonium salts were used as alternative to aromatic halide. The developed protocol offers recyclability, easy workups with short reaction time and good-to-excellent product yield.

RETRACTED ARTICLE: Schiff base transition metal complexes for Suzuki–Miyaura cross-coupling reaction

“…sized through coupling of an aryl halide or triflate to phenylboronic acid in the presence of a catalyst. 12 In practice, palladium (Pd) complexes are common catalysts for Suzuki coupling reactions; [13][14][15][16] however, they being expensive and less abundant it is required to search for more cost-effective and eco-friendly catalysts.…”

Application of Biaryl Phosphacycles in Palladium‐Catalysed Suzuki‐Miyaura Cross‐Coupling Reactions of Aryl Chlorides

“…[68][69][70][71] Another limitation for most catalyst systems is coupling of boronic acids comprising of electron-withdrawing substituents due to their reduced nucleophilicity that retards transmetallation and enhances hydrodeboronation. [23,[72][73][74][75] It is worth mentioning that biaryl products 13 j and 13 k (Scheme 1) were efficiently produced in quantitative yields (88 %-95 %) using biaryl phosphacyles 5-7 as ligands. Catalysts derived from dialkylbiaryl phopshines 10 and 8 exhibited similar performances in the formation of biaryl products 13 j and 13 k with isolated yields of 90 % and 95 %, respectively.…”

Recent Progress in Application of Graphene Supported Metal Nanoparticles in C−C and C−X Coupling Reactions

“…Nagarkar and colleagues prepared Pd NPs on nafion‐graphene support (Pd/Nf−G) through an electrochemical approach . The Pd/Nf−G had excellent catalytic activity in the Sonogashira and Suzuki‐Miyaura coupling reactions.…”